JPH11250858A - Compact fluorescent lamp, and glass main body for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a glass main body for a compact fluorescent lamp by further enlarging the surface area for light emission to be capable of enlarging an emitted light space angle. SOLUTION: A glass main body is composed of roughly parallel main body tubes 4, 5 connected to each other in series at their inner space. The glass main body is composed of at least one part A, for example, and this part A is composed of plural main body tubes 4, 5 connected to each other by tube curved parts 8. A free end 6 of the outer side main body tube 4 of the part A is sealed, and for the inner main body tube 5, an end part of it on the opposite side of dome parts 12 of the glass main body is protruded from a seal end of the two outside main body tubes 4. The parts are connected in series to each other by bridge members.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a so-called glass body of a compact fluorescent lamp, and more particularly to a structure of a glass body which is an envelope of a discharge tube of the compact fluorescent lamp.

[0002]

2. Description of the Related Art A compact fluorescent lamp having a glass body of this kind is disclosed in U.S. Pat. No. 4,337,414. In this known solution, a housing with a ballast circuit for generating a lamp operating voltage from a mains supply comprises:
When viewed from above, both sides slightly project beyond the envelope circle of the glass body. As a result, a significant part of the light-emitting surface of the glass body, mainly the lower part of the tube bend at an angle of 180 °, is covered by the housing, thus limiting the spatial angle of the emitted light, and furthermore towards the base. Since the emitted light is lost, the luminous efficiency of the compact fluorescent lamp is relatively poor.

[0003]

Accordingly, the compact fluorescent lamp has a larger surface area for light emission, thereby increasing the spatial angle of the emitted light and consequently increasing the luminous efficiency. There is a strong need for glass bodies.

[0004]

According to a first aspect, the present invention provides a glass body for a compact fluorescent lamp comprising a plurality of substantially parallel body tubes connected in series in their internal spaces. . The glass body forms a plurality of domes and is provided with at least one exhaust tube.
Out of the main tubes connected in series, the outermost main tubes each have a current introducing line. The glass body is at least one part (hereinafter, also referred to as “glass body part”)
The part is constituted by a plurality of main tubes connected to each other by a tube bending portion having an angle of 180 °. The free end of the outer body tube of the component is sealed, and the inner body tube has its end opposite the dome protruding from the sealed ends of the two outer body tubes.

According to another aspect, the present invention provides a compact fluorescent lamp having a structure in which a glass body is supported by a cap of a housing. The inner body tube of the glass body part has its end opposite to the dome of the glass body protruding from the sealed ends of the two outer body tubes near the housing. As an effect obtained by using the glass body structure of the present invention in a compact fluorescent lamp,
Only the free end of the outer body tube is fixed to the cap of the housing supporting the glass body, the longer inner body tube protruding near the housing, so that this protruding part of the glass body is not covered by the housing. As a result, the emitted light is greater than that of known compact fluorescent lamps, and thus the luminous efficiency is improved in the compact fluorescent lamp according to the invention.

Another advantage of the glass body according to the present invention is that it is suitable to connect a plurality of the above-mentioned parts for forming the glass body in series. For this reason, a glass main body having an arbitrary number of main body tubes of various shapes can be configured, thereby making it possible to provide a compact fluorescent lamp of various wattage and light emission output.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The glass body of the present invention and a compact fluorescent lamp constituted by such a glass body will be described below in detail with reference to the embodiments shown in the drawings. FIG. 1 shows the shape of the component A of the glass body developed on a plane. This part A, which represents an essential feature of the invention, is an element from which glass bodies of various sizes and shapes can be formed.

The glass body part A is composed of four substantially parallel main tubes, of which two outer main tubes 4 and two inner main tubes 5 are mutually connected by a tube bending portion 8 having an angle of 180 °. They are connected in series. In the embodiment of FIG. 1, the domes 12 formed by the upper part of the tube bend 8 at an angle of 180 ° connecting the outer body tube 4 and the inner body tube 5 are substantially flush with each other. The glass body embodying the present invention can also be formed by a plurality of components having different heights of the dome portion 12. At the bottom of part A of the glass body,
The lower end of the tube bend at an angle of 180 ° connecting the inner body tubes 5 protrudes beyond the adjacent free end 6 of the sealed outer body tube 4. An exhaust tube 10 is embedded in a seal 14 at the free end 6 of one outer body tube 4 for the purpose of connecting a plurality of glass body parts in series with a bridge member. This exhaust tube 10 is used to form a bridge member 11 between similar or identical glass body parts. The glass bridge member is formed by heating the hole forming locations near the lower ends of two adjacent outer body tubes 4, then blowing out the holes and fusing the body tubes together.
It is sufficient to embed the exhaust tube 10 in the seal 14 of one outer body tube 4 to pierce the outer body tube 4 of each of the glass body parts A, The bridge member can be easily formed by burying it in the seal of the tube 4.

The component A of the glass body shown in FIG. 1 is in a form developed in a plane, but can be arranged in a non-planar form when forming a compact fluorescent lamp. Thus, for example, a regular polygonal form can be made from part A, while body tubes 4 and 5 remain substantially parallel to each other. FIG.
Shows a part B of the glass body, which is the same as the part A shown in FIG.
4 in that it is formed at the free end 6 of one outer body tube 4. Except for this point, the part B shown in FIG.
Is the same as the part A shown in FIG.

Both the parts A and B of the glass body for a compact fluorescent lamp shown in FIGS.
Providing the exhaust tube 10 and the current introduction line 16 and the electrodes connected to the current introduction line in the glass body and at both free ends 6 is suitable for forming a compact fluorescent lamp. FIG. 3 shows a single-piece glass body suitable for constructing a compact fluorescent lamp, which is composed of part C as shown. In addition to the exhaust tube 10, current introduction lines 16 are embedded in the seals 14 of both outer body tubes 4 of part C. Two exhaust tubes are also used to clean the glass body, details of which are well known in the art.

Using two components, each of which is part B shown in FIG. 2 and one component which is part A shown in FIG. Is connected to each outer body tube 4 of one part A, a compact fluorescent lamp having 12 body tubes can be formed. In FIG.
The glass body for a compact fluorescent lamp having the main body tube of the present invention is shown developed in a plane. This is obtained by connecting two components, each of which is a component B shown in FIG. 2, in series via a bridge member 11. The arrangement developed in the plane of FIG. 4 can also be arranged in a three-dimensional octagonal form, with the body tubes remaining substantially parallel to one another. Seal 1
FIG. 5 shows a bottom view of such an arrangement viewed from the four sides. The reference numerals indicating the same components are the same as those used in FIGS. 1 and 2.

FIG. 6 is a side view of the glass main body shown in the bottom view of FIG. This glass body is arranged in the housing 18. As can be seen, a tube bend at an angle of 180 ° connecting the inner body tube 5 protrudes from the adjacent housing 18 and thus is in contrast to the structure disclosed in US Pat. No. 4,337,414. In addition, this part of the fluorescent lamp is not covered by the compact fluorescent lamp housing. More light is emitted,
The luminous efficiency of the compact fluorescent lamp is increased over prior art lamps.

Of course, it is possible to form a compact fluorescent lamp of another structure by using the parts A and B of FIGS. 1 and 2, respectively. Therefore,
In the arrangement as shown in FIGS.
By inserting the component A between the two components B of FIG. 2, a fluorescent lamp having a larger light emitting surface can be formed. It is never necessary to arrange the body tubes in either a regular polygon or an irregular polygon. Depending on the purpose, the parts A and B can be arranged in a line or in two planes substantially parallel to each other.

[Brief description of the drawings]

FIG. 1 is a side view showing one embodiment of a component of a glass body of the present invention.

FIG. 2 is a side view showing another embodiment of the components of the glass body.

FIG. 3 is a side view showing an embodiment of a single-piece glass body.

FIG. 4 is a developed plan view of a glass body embodying the present invention.

FIG. 5 is a bottom view of a glass body having eight body tubes.

FIG. 6 is a side view showing a partial cross section of a compact fluorescent lamp in which a glass main body is disposed and fixed in a housing.

[Explanation of symbols]

 Reference Signs List A Glass body part B Glass body part C Glass body part 4 Outer body tube 5 Inner body tube 6 Free end 8 Tube bending part 10 Exhaust tube 11 Bridge member 12 Dome part 14 Seal 16 Current introduction line

Continued on the front page (72) Inventor Joseph Flop Hungary, 1148, Budapest, Bolger Kates You 4 (72) Inventor Istvan Worthing Hungary, 1051, Budapest, Elseviet Tail 2

Claims (10)

[Claims] A plurality of substantially parallel main tubes are connected in series in an internal space thereof, and an outermost main tube among the main tubes connected in series is provided with a current introducing line. A glass body for a compact fluorescent lamp further comprising a plurality of domes and provided with at least one exhaust tube, said glass bodies being connected to one another by tube bends (8) each having an angle of 180 °. At least one part (A, B,
C), the free end (6) of the outer body tube (4) of the component (A, B, C) is sealed, and the inner body tube (5) of the component (A, B, C) is sealed. ) Is a glass body for a compact fluorescent lamp, characterized in that the end opposite to the dome portion (12) protrudes from the sealed ends of the two outer body tubes (4). 2. An exhaust tube (10) is provided with said parts (A,
B) embedded in the seal (14) of at least one outer body tube (4) of (B), wherein two adjacent said parts (A, B) are formed between the outer body tubes (4) of said parts The glass body according to claim 1, wherein the glass body is connected in series by a member (11). 3. The glass body according to claim 1, wherein the exhaust tube (10) and the current introduction line (16) are embedded in a seal (14) of one outer body tube (4) of the component (B). 4. An exhaust tube (10) and a current introduction line (16) are provided on each outer body tube (4) of said part (C).
2. The glass body according to claim 1, wherein the glass body is embedded in a seal (14). 5. An outer tube (4) of one of said parts (B) is connected to parts (A, B) adjacent thereto by a bridge member (11), and an exhaust tube (10) and a current introduction line (16). 2) The glass body according to claim 1, wherein the component (B) is embedded in a seal (14) of the other outer body tube (4). 6. A glass body supported by a cap of a housing, the glass body comprising a plurality of substantially parallel body tubes connected in series in an interior space thereof,
The glass body includes a plurality of domes and is provided with at least one exhaust tube, and a current introduction line is provided on an outermost body tube of the plurality of body tubes connected in series. In the fluorescent lamp, each of the glass bodies has an angle of 180 °.
And at least one part (A, B, C) having a plurality of body tubes (4, 5) connected to each other by a tube bending part (8), and the parts (A, B,
The free end (6) of the outer body tube (4) of C) is sealed and the inner body tube (5) of said part (A, B, C)
Is a compact fluorescent lamp characterized in that the end opposite to the dome portion (12) protrudes from the sealed ends of the two outer body tubes (4). 7. An exhaust tube (10) wherein said parts (A,
B) embedded in the seal (14) of at least one outer body tube (4), with two adjacent said parts (A, B) between each respective outer body tube (4) of those parts 7. The compact fluorescent lamp according to claim 6, wherein the compact fluorescent lamp is connected in series by a bridge member (11) formed in the lamp. 8. The compact fluorescent lamp according to claim 6, wherein the exhaust tube (10) and the current introduction line (16) are embedded in a seal (14) of one of the outer body tubes (4) of the component (B). . 9. An exhaust tube (10) and a current feed line (16) are provided on each outer body tube (4) of said part (C).
7. The compact fluorescent lamp according to claim 6, wherein said compact fluorescent lamp is embedded in said seal (14). 10. An outer body tube (4) of one of said parts (B) is connected to parts (A, B) adjacent thereto by a bridge member (11), and an exhaust tube (10) and a current introduction line (16). 7. The compact fluorescent lamp according to claim 6, wherein the component (B) is embedded in a seal (14) of the other outer body tube (4) of the component (B).